Thank you Vix.
Well, it is yet too early to compare...
My setup follows nelsons Schematic, only differing in the rail voltage which is 20V.
As far as I can judge right now the overall sound characteristic is a very detailed and very fine one. It has a somewhat "live" and a very transparent character.
So far.
But I think there is something wrong in my setup. I have to turn the input pots nearly all the way down, otherwise the sound is too much distorted. Unfortunately the bad pots I used don't give enough margin to realy find a good configuration. And of course I have to turn the volume at the output all the way up.
So there are some adjustment to do..

But from what I have heard till now I'am shure, it is very very promising
Manu

after some tweaking,you'll bang on topology limits ;
if you can find your source characteristics and output amp sensitivity in with topology layed boundaries .......fine ;
if not...... nice xperiment ,useful as stage somewhere.